{"product_id":"14x-25-gecko-4p3w-w-m-t-hl-sensor","title":"Hydro-Quip Gecko 4-Pole 3 Wire Hi Limit Sensor with 1\/4 Inch Bulb","description":"\u003cp\u003eThe Hydro-Quip 34-0201 is a hi limit sensor for Gecko spa controls. It uses the Gecko 4-pole 3 wire connector, has a 1\/4 inch sensing bulb and a 14 inch lead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it protects\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe hi limit is the safety sensor at the heater. It is not the one that holds your set temperature; its job is to notice when the water at the heater has gone past a safe point and shut the heater down before anything is damaged or anyone is scalded. Because it is a safety device, a spa will refuse to heat rather than run without a working one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe symptom that leads here\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRepeated overheat or hi limit faults on a spa whose water is plainly not hot. A sensor that has drifted out of range or failed open reports a temperature that is not real, and the controller does the safe thing and locks the heater out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe connector is what matters most. Count the poles and wires on the sensor you are removing and confirm it is the Gecko 4-pole 3 wire style before ordering.\u003c\/p\u003e","brand":"Hydro-Quip","offers":[{"title":"Default Title","offer_id":48634165756116,"sku":"HQP-851-9029","price":74.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/34-0201-14x25-gecko-4p3w-wmt-hl-sensor.jpg?v=1788826041","url":"https:\/\/www.activepoolsupply.com\/products\/14x-25-gecko-4p3w-w-m-t-hl-sensor","provider":"Active Pool Supply","version":"1.0","type":"link"}